please i am having problem with my web cam.i formatted my Compaq 615 laptop and downloaded the cam driver and it was installed successful but i cann’t be able to use it because i couldn’t locate the web cam icon in my desktop.what do i do?

Hi All
i have a problem with my laptop running on xp 2000.av tried to install the antivirus but all in vain. the services are not running as well as the command prompt. once trying to open it appears once a second and it goes, what do i do to solve this.